Iwamoto, Yuuki
Current rating: 1472
Record: 15-18-1
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 541 | Sugimoto, Ryosuke (1500) | Won 2-0 | +191465 |
| 2sealed | 380 | Okuda, Masateru (1568) | Lost 1-2 | -161449 |
| 3sealed | 924 | Oshimi, Akira (1453) | Won 2-0 | +181467 |
| 4sealed | 541 | Kondo, Masahiro 8757 (1518) | Lost 0-2 | -171450 |
| 5sealed | 619 | Sakaguchi, Taiti (1507) | Won 2-0 | +191469 |
| 6sealed | 469 | Suguro, Takuya (1516) | Won 2-0 | +191488 |
| 7sealed | 305 | Kitagawa, Hiroyuki (1618) | Lost 0-2 | -161472 |
| top | average opponent: 1526record: 4-3 | new rating: 1472 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1456 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 530 | Miyashita, Hiroaki (1519) | Won 2-1 | +191475 |
| 2legacy | 457 | Sakamoto, Takumi (1520) | Won 2-1 | +191494 |
| 3legacy | 276 | Huang, Shun-Fa (1540) | Lost 1-2 | -181476 |
| 4legacy | 584 | Kimura, Shigeki (1708) | Won 2-1 | +231499 |
| 5legacy | 297 | Kojima, Youichiro (1510) | Lost 1-2 | -181481 |
| 6legacy | 523 | Yamagishi, Keisuke (1531) | Lost 0-2 | -171464 |
| 7legacy | 666 | Sasaki, Shun (1403) | Won 2-1 | +171481 |
| 8legacy | 428 | Morii, Tomofumi (1531) | Lost 0-2 | -171464 |
| 9legacy | 630 | Ji, Kanghyun (1500) | Lost 1-2 | -181446 |
| top | average opponent: 1529record: 4-5 | new rating: 1446 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1494 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 561 | Nomura, Tomohiro (1428) | Lost 0-2 | -191475 |
| 2standard | 904 | Mori, Arashi (1443) | Won 2-1 | +171492 |
| 3standard | 1167 | Suzuki, Tomoya (1500) | Lost 0-2 | -171475 |
| 4standard | 1279 | Takenaka, Shunsuke (1465) | Draw 1-1 | -11474 |
| 5standard | 1316 | Mizushima, Masafumi (1430) | Lost 1-2 | -181456 |
| top | average opponent: 1453record: 1-3-1 | new rating: 1456 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 481 | Nakano, Ryuuichi (1685) | Lost 1-2 | -141449 |
| 2sealed | 892 | Katumi, Kenta (1483) | Won 2-0 | +191468 |
| 3sealed | 658 | Egawa, Yoshitada (1467) | Won 2-0 | +181486 |
| 4sealed | 764 | Goda, Naoki (1522) | Won 2-1 | +191505 |
| 5sealed | 478 | Yeo, Johnson (1525) | Won 2-0 | +181523 |
| 6sealed | 92 | Iwasawa, Fumiya (1640) | Lost 0-2 | -161507 |
| 7sealed | 320 | Simada, Sou (1539) | Won 2-0 | +191526 |
| 8sealed | 347 | Kokubun, Hiroshi (1734) | Lost 1-2 | -141512 |
| 9sealed | 339 | Nagao, Shunsuke (1548) | Lost 1-2 | -181494 |
| top | average opponent: 1572record: 5-4 | new rating: 1494 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1165 | Hayase, Fumihiko (1449) | Lost 1-2 | -191481 |
| 2sealed | 1241 | Touma, Hiroshi (1480) | Lost 0-2 | -181463 |
| 3sealed | 1300 | Igarashi, Kyohei (1466) | Won 2-0 | +181481 |
| 4sealed | 1267 | Yamanaka, Shouki (1503) | Lost 1-2 | -181463 |
| top | average opponent: 1474record: 1-3 | new rating: 1463 | ||